BSD > BSD distributions >
(on Wikipedia)
https://www.openbsd.org/
Security-centric BSD
BSD > BSD distributions >
(on Wikipedia)
https://www.freebsd.org/
User-centric BSD (speed, apps, UI).
BSD > BSD distributions >
(on Wikipedia)
https://www.dragonflybsd.org/
Clustering as a long-term goal.
DragonFly BSD has been on my radar for a very long time now.
Unfortunately, I haven't had any success with it.
Portability-centric BSD.
My first exposure to NetBSD was an anti-Linux sentiment at a user group meeting. Nice..
Software >
Hyperbola's A proposed a fork of OpenBSD.
Proper title unknown; perhaps HyperbolaBSD GNU/Linux-libre